Hello Guix! Following the big merge of the core-updates-frozen branch into master, I've noticed now on two counts the following: running 'guix deploy' leaves the remote machine unreachable by SSH. The connection passes authentication but then gets closed immediately. /var/log/messages reveals the following error:
--8<---------------cut here---------------start------------->8--- sshd[29578]: error: PAM: pam_open_session(): Module is unknown --8<---------------cut here---------------end--------------->8--- The machines updated were running Guix System revisions predating the core-updates-frozen merge. The 'guix deploy' command doesn't succeed due to SSH starting to fail at 99% completion or similar; the bootloader configuration is not updated so rebooting boots into the same old system generation (and SSH works again): --8<---------------cut here---------------start------------->8--- guix deploy: deploying to x200... guix deploy: sending 0 store items (0 MiB) to 'x200.local'... guix deploy: sending 0 store items (0 MiB) to 'x200.local'... substitute: updating substitutes from 'http://127.0.0.1:8181'... 100.0% substitute: updating substitutes from 'https://ci.guix.gnu.org'... 100.0% The following derivations will be built: /gnu/store/049wr939gjpgl3471wrk8b1waqgswrdi-remote-exp.scm.drv /gnu/store/y1mgddpa2qkrmc01knpdam917b60yxlq-switch-to-system.scm.drv /gnu/store/vgadszcfklbhr7d8yl8jprzipjy6b0vj-system.drv /gnu/store/ypyaf6ib1w5nc4kr0xgjm4par407cnzk-provenance.drv building /gnu/store/ypyaf6ib1w5nc4kr0xgjm4par407cnzk-provenance.drv... building /gnu/store/vgadszcfklbhr7d8yl8jprzipjy6b0vj-system.drv... building /gnu/store/y1mgddpa2qkrmc01knpdam917b60yxlq-switch-to-system.scm.drv... building /gnu/store/049wr939gjpgl3471wrk8b1waqgswrdi-remote-exp.scm.drv... guix deploy: sending 5 store items (0 MiB) to 'x200.local'... guix deploy: error: failed to deploy x200: failed to start 'guix repl' on 'x200.local' $ guix deploy ~/stow/guix/machines/x200.scm --no-offload The following 1 machine will be deployed: x200 guix deploy: deploying to x200... guix deploy: error: failed to deploy x200: remote command '/run/setuid-programs/sudo -n -- guix repl -t machine' failed with status 254 $ ssh x200 Last login: Wed Dec 15 23:28:02 2021 from 192.168.10.15 Connection to x200.local closed. --8<---------------cut here---------------end--------------->8--- This is obviously embarrassing in scenarios where the SSH connection is the main way to reach to the remote machine. Ideas? Thank you, Maxim
